Unexpected complexity of Swedish pronouns, and escaping the resulting embarrassment

I dreamed that
Swedish had separate third-person-plural pronouns based on gender.
They were formed from
han
and
hon
by adding a common suffix,
but the pattern broke down for
det,
and I got stuck trying to finish a sentence without knowing the correct word.

I was able to escape from this embarrassing situation by using
a technique available only in dreams:
I woke up.